EOD GPT

The core of NexusTrade is Aurora, an agent that runs a four-stage research loop: Investigate (turn the thesis into testable rules), Experiment (build variants across lookbacks, timing, position sizes), Validate (rank on one period, retest on a held-out period, then rolling walk-forward windows), and Deploy (paper trade first, then go live through your broker). The homepage publishes a complete worked example rather than a cherry-picked screenshot: the Buffett Signal Composite experiment lists all six surviving candidates with their exact parameters — 60-day lookback/60-day cooldown/15% allocation, 90/45/10, 90/60/20, 120/30/10, 60/21/15, 90/45/20 — plus training and validation Sortino for each. Candidate 06 returned +30.6% on the validation window at a 2.47 validation Sortino. Critically, NexusTrade then tells you the gap between training and validation Sortino "is not proof the strategy improved" because one later window can flatter any strategy when the market is easier. That is the single most credible paragraph on the site, and it's the reason to trust the rest. The marketplace is the second pillar. Bots are listed with their deployment type clearly labeled — "Forward test · paper" for the paper records, not blurred into live performance — and the risk metrics sit on the card next to the return: Venezuela Equal Weight at +44.2% with a −15.1% max drawdown and 2.74 Sortino, SPXL Scaling into Drawdowns V5 at +56.0% with −12.5% drawdown, Drawdown-Based Accumulation at +60.7% but a −33.0% drawdown and 1.81 Sortino. Free bots sit alongside paid ones (Drawdown-Based Accumulation is listed at $39.99/month), and the July 2026 relaunch reframes the whole product as an agentic trading marketplace. Scale indicators on the homepage: 35,809 registered users, 581,007 backtests run, 13,415 agents created. The founder's public $25,000 portfolio challenge is the other trust signal — real capital, real fills, real mistakes, +12.7% versus SPY's +8.2% between May 5 and Oct 7, 2026. It's short and it's one account, but publishing a live account that can lose money is more than most competitors do. Where it falls short: live deployment only reaches Alpaca, Public, TradeStation and Tradier, so traders outside that footprint can research but not execute. Backtesting is historical by definition; a paper forward test is still the only honest bridge to live capital. And the plain-English entry point is a ceiling as well as a floor — strategies that need intricate conditional logic will fight the one-sentence framing. Institutional desks needing self-hosting are out of scope entirely.